Efficient screw finish machining equipment

Abstract

The invention belongs to the technical field of screw machining, and discloses efficient screw finish machining equipment which comprises a box body, a storage box is slidably arranged at the position, close to the bottom, in the box body, and the storage box is used for collecting impurities generated by cutting; the cutting knife is provided with an electric push rod, and the electric push rod can drive the cutting knife to slide along the top of the box body to cut and polish a screw rod needing to be machined; the fixing mechanism is located in the box body, the fixing mechanism is used for rapidly clamping and fixing a to-be-machined screw rod, and through cooperation of structures such as a clamping plate, a mounting box and a driving assembly, rapid clamping of the to-be-machined screw rod is conveniently achieved, and the screw rod machining device is suitable for various machining states; the problems that when existing efficient screw finish machining equipment is used for machining screws, a clamp is single in structure, poor in flexibility and difficult to adapt to machining of the screws of different forms and different stages are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of screw processing, and specifically relates to an efficient screw finishing equipment. Background Art

[0002] In the processing of precision screws (such as ball screws, worm gears, planetary roller screws, etc.), high-precision grinding is the key process to ensure pitch accuracy, surface roughness and shape tolerance. At present, the numerical control screw grinding machine widely adopts the grinding wheel grinding process, and realizes the precise forming of the spiral groove through the precise synchronous movement of the workpiece and the grinding wheel. In the precision processing of screws (such as ball screws, trapezoidal screws, worm gears, etc.), the stability and adaptability of the fixture system directly affect the processing accuracy and efficiency.

[0003] For example, the utility model with the publication number CN213646712U discloses a screw clamping device for processing screws, including a chuck fixing seat, an upper chuck and a lower chuck. The upper chuck and the lower chuck are respectively connected to the chuck fixing seat. An upper positioning part and a lower positioning part are arranged on the chuck fixing seat. The upper positioning part is located above the lower positioning part. The upper chuck is connected to the upper positioning part, and the lower chuck is connected to the lower positioning part. A lower chuck recess for preventing the screw part from slipping out of the lower chuck is arranged on the top surface of the lower chuck. A support is arranged at the bottom of the chuck fixing seat, and the top end of the support abuts against the bottom surface of the lower chuck. The advantages of the present invention are as follows: the fixing effect of the screw is good; the screw or screw parts such as unprocessed screw blanks usually have a circular side projection. A lower chuck recess is arranged on the top surface of the lower chuck, so that the rolling of the screw part can be restricted, and a better clamping effect can be obtained; the upper chuck and the lower chuck are respectively connected to the chuck fixing seat through corresponding positioning parts, and the opening size of the clamping opening can be conveniently changed.

[0004] In the above device, the screw processing usually uses a single clamping plate to fix the screw. However, in actual applications, especially in processes such as thread processing (such as whirling milling, grinding) and surface treatment (such as polishing, coating), the existing fixture structure cannot meet the clamping requirements of different processing stages. During thread processing, the screw needs to rotate at a high speed and bear radial cutting force. However, the existing fixture lacks radial limit, which is easy to cause workpiece vibration and affect the thread lead accuracy; during surface treatment, it is necessary to avoid the fixture covering the screw surface. However, the existing chuck clamping will cover part of the thread area, resulting in uneven spraying or polishing. At the same time, when processing screws with different length-diameter ratios (such as short and thick screws and long and thin screws), it is necessary to replace the fixture components.

[0005] Therefore, an efficient screw finishing equipment is proposed to solve the problems raised in the background art. Summary of the Invention

[0006] To solve the problems raised in the above background art, the present invention provides an efficient screw finishing equipment.

[0007] To achieve the above object, the present invention provides the following technical solution: An efficient screw finishing equipment, including a box body, wherein a storage box is slidably arranged at a position close to the bottom inside the box body, and the storage box is used to collect impurities generated by cutting;

[0008] A cutting tool, on which an electric push rod is arranged, which can drive the cutting tool to slide along the top of the box body to cut and polish the screw to be processed;

[0009] A fixing mechanism, which is located inside the box body and is used to quickly clamp and fix the screw to be processed;

[0010] Wherein, the fixing mechanism includes two groups of clamping plates symmetrically arranged on both sides of the top of the box body, mounting boxes arranged outside the two groups of clamping plates, and a driving component located inside the mounting boxes. The two groups of clamping plates are both arranged in a circular array inside the mounting boxes.

[0011] Preferably, rubber pads are fixedly arranged on the inner walls of the two groups of clamping plates close to each other, and moving blocks are fixedly arranged on one side of the plurality of clamping plates close to the mounting box.

[0012] Preferably, the plurality of moving blocks are L-shaped, and moving rods are fixedly arranged at one ends of the plurality of moving blocks away from the rubber pads.

[0013] Preferably, a plurality of through grooves arranged in a circumferential array are formed on the side wall of the mounting box, a plurality of moving grooves are formed on one side of the mounting box close to the clamping plate, the rubber pad slides along the through grooves, and the moving rod moves along the moving grooves.

[0014] Preferably, the driving component includes a driving disk located inside the mounting box, a jacking disk arranged on the side of the driving disk close to the clamping plate, a driving rod fixedly installed at the center of the driving disk, and a control motor fixedly arranged on the driving rod.

[0015] Preferably, mounting blocks are fixedly arranged on the sides of the two mounting boxes away from each other, the driving rod is rotatably connected to the mounting box and the mounting block, and the control motor is fixedly connected to the mounting block.

[0016] Preferably, a plurality of arc grooves arranged in a circumferential array are formed on the driving disk, a plurality of limiting columns arranged in a circumferential array are fixedly arranged on the side of the jacking disk close to the driving disk, and the limiting columns are clamped with the arc grooves.

[0017] Preferably, the jacking disk is in the shape of a windmill, and the limiting rods are distributed on the protruding side of the jacking disk, and the jacking disk rotates under the drive of the driving disk.

[0018] Preferably, round holes are formed at one ends of the two groups of moving blocks close to the moving rod, springs are sleeved inside the round holes, and the springs are annular.

[0019] Preferably, an adjusting assembly is arranged at the bottom of the mounting block, and the adjusting assembly is used to adjust the distance between the two side clamping plates and the mounting box, so as to realize the adaptive processing of screws with different lengths;

[0020] The adjusting assembly includes a connecting frame fixedly arranged at the bottoms of the two mounting blocks, sliders fixedly installed at the bottoms of the two connecting frames, a threaded rod screwed on the two sliders, an adjusting motor fixedly arranged on the side wall of the box body and fixedly connected to one end of the threaded rod, a sliding rod fixedly arranged inside the box body and slidably connected to the slider, and a telescopic sleeve sleeved at the center of the threaded rod. The two ends of the telescopic sleeve are respectively fixedly connected to the sliders on both sides. A partition block is arranged at the center of the threaded rod, and the threads on both sides of the threaded rod are opposite.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] Through the cooperation of structures such as clamping plates, mounting boxes, and driving components, the present invention facilitates the rapid clamping of the screw to be processed, adapts to various processing states, quickly clamps screws of different lengths through an adjustable fixing mechanism, first adjusts the distance between the two side clamping plates and the mounting box to adapt to the workpiece, then places the screw between the clamping plates, makes the rubber pad fit the surface, then the driving component pushes the clamping plates to clamp and fix, and finally uses a cutting tool for processing. The generated chips fall into the bottom storage box for unified collection, which is convenient for subsequent processing, and solves the problem that when the existing high-efficiency screw finishing equipment processes screws, the fixture structure is relatively single, the flexibility is poor, and it is difficult to adapt to the processing of screws in different forms and different stages.

[0023] Through the cooperation of structures such as a driving disk, a jacking disk, and a control motor, the present invention facilitates the adjustment of the positions of multiple clamping plates. By driving the driving disk and the jacking disk to rotate through the control motor, when the protruding part of the jacking disk pushes the moving block, the clamping plate expands outwards, which is convenient for placing the screw; when the concave part of the jacking disk turns to the moving block, the spring pulls the clamping plate to reset and quickly clamps the screw to achieve stable fixation.

[0024] Through the cooperation of structures such as a threaded rod, an adjusting motor, and a sliding rod, the present invention facilitates the clamping and fixing of screws to be processed with different lengths. The adjusting assembly drives the bidirectional threaded rod to rotate through the adjusting motor, drives the two side sliders to slide in the opposite direction along the sliding rod, makes the connecting frame and the mounting block move synchronously, and the telescopic sleeve automatically expands and contracts for protection, so as to quickly adjust the distance between the clamping plates to meet the clamping requirements of screws with different lengths. Description of the Drawings

[0025] Figure 1 Schematic diagram of the overall structure of the present invention;

[0026] Figure 2 Top view of the present invention;

[0027] Figure 3 Schematic diagram of the sectional three-dimensional structure of the present invention;

[0028] Figure 4 Schematic diagram of the three-dimensional structure of the adjustment component of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the local structure at A in the present invention;

[0030] Figure 6 Schematic diagram of the structural cooperation relationship between the installation box and the drive component of the present invention;

[0031] Figure 7 Schematic diagram of the structural cooperation relationship between the clamping plate and the installation box of the present invention;

[0032] Figure 8 Schematic diagram of the structural cooperation relationship between the drive component and the spring of the present invention;

[0033] Figure 9 Schematic diagram of the structural cooperation relationship between the clamping plate and the spring of the present invention.

[0034] In the figure: 1, box body; 11, storage box; 2, cutting tool; 3, fixing mechanism; 31, clamping plate; 311, rubber pad; 312, moving block; 3121, moving rod; 32, installation box; 321, moving groove; 33, drive component; 331, drive disk; 332, jacking disk; 333, control motor; 34, spring; 35, installation block; 36, adjustment component; 361, connecting frame; 362, slider; 363, threaded rod; 364, adjustment motor; 365, sliding rod; 366, telescopic sleeve. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figures 1 to 9 shown, the present invention provides an efficient screw finishing equipment, including a box body 1, and a storage box 11 is slidably arranged at a position close to the bottom inside the box body 1, and the storage box 11 is used for collecting impurities generated by cutting;

[0037] The cutting tool 2 is provided with an electric push rod, which can drive the cutting tool 2 to slide along the top of the box body 1 to cut and polish the screw to be processed;

[0038] The fixing mechanism 3 is located inside the box body 1 and is used to quickly clamp and fix the screw to be processed;

[0039] Among them, the fixing mechanism 3 includes two groups of clamping plates 31 symmetrically arranged on both sides of the top of the box body 1, an installation box 32 arranged outside the two groups of clamping plates 31, and a driving component 33 located inside the installation box 32. The two groups of clamping plates 31 are both arranged in a circular array inside the installation box 32. Rubber pads 311 are fixedly arranged on the inner walls of the two groups of clamping plates 31 close to each other. Moving blocks 312 are fixedly arranged on one side of the plurality of clamping plates 31 close to the installation box 32. The plurality of moving blocks 312 are L-shaped. Moving rods 3121 are fixedly arranged at one ends of the plurality of moving blocks 312 away from the rubber pads 311. A plurality of through grooves arranged in a circumferential array are formed on the side wall of the installation box 32, and a plurality of moving grooves 321 are formed on one side of the installation box 32 close to the clamping plates 31. The rubber pads 311 slide along the through grooves, and the moving rods 3121 move along the moving grooves 321.

[0040] Adopting the above solution: the screw to be processed is quickly clamped and fixed by the fixing mechanism 3, and at the same time, the positions of the clamping plates 31 on both sides and the installation box 32 are adjusted according to the length of the screw, so as to adjust the distance between the two side clamps. After the adjustment is completed, the screw to be processed is placed between the two groups of a plurality of clamping plates 31, so that the rubber pads 311 are in contact with the outer wall of the screw to be processed. At this time, the driving component 33 is used to drive the adjustment of the positions of the plurality of clamping plates 31, drive the clamping plates 31 to fix the screw to be processed, and after fixing, the cutting tool 2 is used to cut the screw to be processed. The chips generated by the processing fall into the storage box 11 at the bottom of the box body 1 for collection, which is convenient for subsequent centralized treatment.

[0041] As Figure 8 shown, the driving component 33 includes a driving disk 331 located inside the installation box 32, a jacking disk 332 arranged on the side of the driving disk 331 close to the clamping plates 31, a driving rod fixedly installed at the center of the driving disk 331, and a control motor 333 fixedly arranged on the driving rod;

[0042] On one side of the two mounting boxes 32 away from each other, mounting blocks 35 are fixedly arranged. The driving rod is rotationally connected to the mounting box 32 and the mounting block 35. The control motor 333 is fixedly connected to the mounting block 35. A plurality of arc-shaped grooves are formed in the driving disk 331 and are distributed in a circumferential array. On one side of the lifting disk 332 close to the driving disk 331, a plurality of limiting posts are fixedly arranged in a circumferential array. The limiting posts are clamped with the arc-shaped grooves. The lifting disk 332 is in the shape of a windmill, and the limiting rods are distributed on the protruding side of the lifting disk 332. The lifting disk 332 rotates under the drive of the driving disk 331. Circular holes are formed at one ends of the two groups of moving blocks 312 close to the moving rod 3121. A spring 34 is sleeved inside the circular holes. The spring 34 is in a circular ring shape.

[0043] Adopting the above solution: The driving assembly 33 is used to reasonably drive the plurality of clamping plates 31. Specifically, the control motor 333 drives the driving disk 331 to rotate in the mounting box 32. During the rotation of the driving disk 331, the limiting posts clamped inside it will be driven to move synchronously, and then the lifting disk 332 will be driven to rotate synchronously. Since the lifting disk 332 is irregular in shape, when its protruding end rotates to contact the moving block 312, it will drive the plurality of moving blocks 312 to move along the through groove on the mounting box 32, so that the moving rod 3121 expands outward along the moving groove 321, and then the arcs of the plurality of clamping plates 31 move away from each other, facilitating the placement of the screw to be processed. At this time, the spring 34 is in a stretched state under the action of the pulling force; when the concave end of the lifting disk 332 rotates to the side close to the moving block 312, the moving block 312 loses the extrusion force. At this time, the spring 34 drives the plurality of clamping plates 31 to reset synchronously and approach the screw to be processed at the center to clamp it quickly, thereby realizing the fixed clamping of the screw to be processed.

[0044] As Figures 3 to 4 shown, an adjusting assembly 36 is arranged at the bottom of the mounting block 35. The adjusting assembly 36 is used to adjust the distance between the two side clamping plates 31 and the mounting box 32, so as to realize the adaptive processing of screws of different lengths;

[0045] The adjusting assembly 36 includes a connecting frame 361 fixedly arranged at the bottoms of the two mounting blocks 35, a slider 362 fixedly installed at the bottoms of the two connecting frames 361, a threaded rod 363 screwed on the two sliders 362, an adjusting motor 364 fixedly arranged on the side wall of the box body 1 and fixedly connected to one end of the threaded rod 363, a sliding rod 365 fixedly arranged inside the box body 1 and slidably connected to the slider 362, and a telescopic sleeve 366 sleeved at the center of the threaded rod 363. The two ends of the telescopic sleeve 366 are respectively fixedly connected to the two side sliders 362. A partition block is arranged at the center of the threaded rod 363, and the threads on the two symmetrical sides of the threaded rod 363 are opposite.

[0046] Adopt the above solution: The distance between the two side mounting boxes 32 and the clamping plates 31 can be quickly adjusted by the adjusting component 36. Specifically, the adjusting motor 364 drives the threaded rod 363 to rotate. The threads on both sides of the threaded rod 363 are opposite. During rotation, it will drive the sliders 362 on both sides to move towards each other, causing them to slide along the slide rod 365, and then drive the top connecting frame 361 and the mounting block 35 to approach or move away from each other. During the adjustment process, the telescopic sleeve 366 automatically expands and contracts, providing a protective effect on the threaded rod 363, preventing cutting debris from jamming the threaded rod 363 and affecting the use, thereby achieving the clamping of screws with different lengths to be processed.

[0047] The working principle and usage process of the present invention: First, the operator needs to adjust the fixture spacing according to the actual length of the screw to be processed. This step is achieved by starting the adjusting motor 364, which drives the precisely designed threaded rod 363 to rotate. The threaded rod 363 adopts a double-thread structure, and its rotation will drive the sliders 362 on both sides to move synchronously and in opposite directions on the guide rails, achieving precise displacement of moving away from or approaching each other. This symmetric transmission mechanism ensures that the fixtures on both sides of the top can always move parallelly, thereby providing precise clamping positioning for screws of different lengths. The entire adjustment process is stable and reliable, with a wide adjustment range, and can adapt to various processing requirements from short screws to extra-long screws. After completing the initial length adjustment, the preparation work of the clamping system follows;

[0048] The operator starts the control motor 333, which drives the specially designed drive disk 331 to start rotating. The drive disk 331 is integrated with a carefully calculated cam profile. Through the cooperation with the jacking disk 332, it can precisely control the movement trajectory of the moving block 312. Under the action of the cam, the moving block 312 will smoothly slide along the through groove precisely machined on the side wall of the mounting box 32. This mechanical linkage will drive all the clamping plates 31 to expand outward synchronously, forming a sufficiently large clamping space. The entire expansion process is smooth and stable, ensuring sufficient operating space for the subsequent workpiece placement. When the clamping range is adjusted in place, the operator can conveniently place the screw to be processed precisely between multiple clamping plates 31. At this time, start the control motor 333 again to rotate the drive disk 331 to a predetermined position. At this time, the concave part of the jacking disk 332 will align with the moving block 312. At the same time, the pre-installed high-performance springs 34 start to play a role. These springs 34 are precisely calculated and selected to provide uniform and sufficient clamping force. Under the action of the spring force, all the clamping plates 31 will reset towards the central position synchronously, achieving uniform clamping of the screw. This multi-point and multi-direction clamping method ensures that the workpiece will not generate any displacement or vibration during the processing, providing a reliable guarantee for subsequent precision processing;

[0049] After the workpiece clamping is completed, the cutting program can be started. The high-performance cutting tool 2 will move along the axial direction of the screw according to the preset path for precise cutting. The metal chips generated during the whole cutting process will be processed by a perfect collection system, and all chips will fall into the specially designed storage box 11. The storage box 11 is designed to prevent splashing, ensuring that the chips will not overflow, which is convenient for subsequent unified collection and processing, keeping the working environment clean and meeting the environmental protection requirements of modern production.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0051] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency screw finishing equipment, characterized by: include: A box body (1), wherein a storage box (11) is slidably arranged near the bottom of the box body (1), and the storage box (11) is used to collect impurities generated by cutting; A cutting blade (2), wherein the cutting blade (2) is provided with an electric push rod, which can drive the cutting blade (2) to slide along the top of the box body (1) to cut and grind the screw rod to be processed; A fixing mechanism (3), the fixing mechanism (3) being located inside the box body (1), and the fixing mechanism (3) being used to quickly clamp and fix the screw to be processed; The fixing mechanism (3) comprises two groups of clamping plates (31) symmetrically arranged on both sides of the top of the box body (1), a mounting box (32) arranged outside the two groups of clamping plates (31), and a driving component (33) located inside the mounting box (32), and the two groups of clamping plates (31) are distributed inside the mounting box (32) in a circular array.

2. The high-efficiency screw finishing equipment according to claim 1 is characterized in that: A rubber pad (311) is fixedly provided on the inner wall of the two groups of clamping plates (31) on the side close to each other, and a moving block (312) is fixedly provided on the side of the plurality of clamping plates (31) close to the installation box (32).

3. The high-efficiency screw finishing equipment according to claim 2 is characterized in that: The plurality of moving blocks (312) are L-shaped, and a moving rod (3121) is fixedly provided at one end of the plurality of moving blocks (312) away from the rubber pad (311).

4. The high-efficiency screw finishing equipment according to claim 3 is characterized in that: A plurality of through grooves arranged in a circular array are provided on the side wall of the installation box (32), a plurality of movable grooves (321) are provided on a side of the installation box (32) close to the clamping plate (31), the rubber pad (311) slides along the through grooves, and the movable rod (3121) moves along the movable grooves (321).

5. The high-efficiency screw finishing equipment according to claim 1 is characterized in that: The driving assembly (33) comprises a driving disk (331) located inside the installation box (32), a lifting disk (332) arranged on a side of the driving disk (331) close to the clamping plate (31), a driving rod fixedly installed at the center of the driving disk (331), and a control motor (333) fixedly installed on the driving rod.

6. The high-efficiency screw finishing equipment according to claim 5 is characterized in that: A mounting block (35) is fixedly provided on one side of the two mounting boxes (32) that is away from each other, the driving rod is rotatably connected to the mounting box (32) and the mounting block (35), and the control motor (333) is fixedly connected to the mounting block (35).

7. The high-efficiency screw finishing equipment according to claim 5, characterized in that: The driving disk (331) is provided with a plurality of arc-shaped grooves distributed in a circumferential array, and a plurality of limiting columns in a circumferential array are fixedly provided on one side of the lifting disk (332) close to the driving disk (331), and the limiting columns are engaged with the arc-shaped grooves.

8. The high-efficiency screw finishing equipment according to claim 7, characterized in that: The lifting plate (332) is in the shape of a windmill, and the limiting rods are distributed on a protruding side of the lifting plate (332). The lifting plate (332) rotates under the drive of the driving plate (331).

9. The high-efficiency screw finishing equipment according to claim 2, characterized in that: A circular hole is provided on one end of the two groups of moving blocks (312) close to the moving rod (3121), and a spring (34) is sleeved inside the circular hole. The spring (34) is in a circular ring shape.

10. The high-efficiency screw finishing equipment according to claim 6, characterized in that: An adjusting assembly (36) is provided at the bottom of the mounting block (35), and the adjusting assembly (36) is used to adjust the distance between the clamping plates (31) on both sides and the mounting box (32) to achieve adaptive processing for screws of different lengths; The adjustment assembly (36) comprises a connecting frame (361) fixedly arranged at the bottom of the two mounting blocks (35), a sliding block (362) fixedly arranged at the bottom of the two connecting frames (361), a threaded rod (363) screwed on the two sliding blocks (362), an adjustment motor (364) fixedly arranged on the side wall of the box body (1) and fixedly connected to one end of the threaded rod (363), a sliding rod (365) fixedly arranged inside the box body (1) and slidably connected to the sliding block (362), and a telescopic sleeve (366) sleeved at the center of the threaded rod (363), the two ends of the telescopic sleeve (366) being fixedly connected to the sliding blocks (362) on both sides respectively, a partition block is arranged at the center of the threaded rod (363), and the threads on the symmetrical sides of the threaded rod (363) are opposite.

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